TC1796
Peripheral Units (Vol. 2 of 2)
Synchronous Serial Interface (SSC)
User’s Manual 20-53 V2.0, 2007-07
SSC, V2.1
selected as alternate function via the P2_IOCR0 and P2_IOCR4 registers. Additionally,
the logical AND combination of two SLSOx outputs with identical index “x” can be
connected as output to Port 2 (see Figure 20-19). Two SLSOx outputs of SSC0, SLSO0
and SLSO1, are connected to dedicated class A2 pins. These dedicated pins are always
outputs that are tri-stated when SSC0 is disabled (SSC0_CON.EN = 0).
Figure 20-19 SLSO Output Selection
Table 20-4 shows how bits and bit fields must be programmed for the required I/O
functionality of the SSC I/O lines.
Table 20-4 SSC0 and SSC1 I/O Line Selection and Setup
Module Port Lines Input/Output Control Register Bits
1)
I/O
SSC0 MTSR0 SSC0_CON.MS = 0 SSC0_
CON.EN = 1
Input
SSC0_CON.MS = 1 Output
MRST0 SSC0_CON.MS = 1 Input
SSC0_CON.MS = 0 Output
SCLK0 SSC0_CON.MS = 0 Input
SSC0_CON.MS = 1 Output
MTSR0
MRST0
SCLK0
– SSC0_
CON.EN = 0
Tri-Stated
SLSI0 – – Input
MCA05794
&
SLSOx
SSC0
SSC1
Port 2.x
ALT2
SLSOx
x = 2-7
ALT1
ALT3
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